@article{TM2_2013_XVI_2_a1,
     author = {Miljan Kne\v{z}evi\'c and {\DJ}or{\dj}e Krtini\'c},
     title = {A note on infinite descent principle},
     journal = {The Teaching of Mathematics},
     pages = {67 },
     publisher = {mathdoc},
     volume = {XVI},
     number = {2},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TM2_2013_XVI_2_a1/}
}